Spray forming of homogeneous 100Cr6 bearing steel billets

Cui, Chengsong; Fritsching, Udo; Schulz, A.; Tinscher, R.; Bauckhage, Klaus; Mayr, P.

doi:10.1016/j.jmatprotec.2005.02.250

Cited by 21 publications

(5 citation statements)

References 10 publications

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“…This result suggests that during the deposition process, the cooling rate must be slower than 20 K/minutes since hot droplets are continuously deposited, which is in accordance with what has been reported in the literature. [20,21] …”

Section: A Boron Modified Supermartensitic Stainless Steelmentioning

confidence: 99%

Solidification Sequence of Spray-Formed Steels

Zepon

Ellendt

Uhlenwinkel

et al. 2015

Metall Mater Trans A

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Solidification in spray-forming is still an open discussion in the atomization and deposition area. This paper proposes a solidification model based on the equilibrium solidification path of alloys. The main assumptions of the model are that the deposition zone temperature must be above the alloy's solidus temperature and that the equilibrium liquid fraction at this temperature is reached, which involves partial remelting and/or redissolution of completely solidified droplets. When the deposition zone is cooled, solidification of the remaining liquid takes place under near equilibrium conditions. Scanning electron microscopy (SEM) and optical microscopy (OM) were used to analyze the microstructures of two different spray-formed steel grades: (1) boron modified supermartensitic stainless steel (SMSS) and (2) D2 tool steel. The microstructures were analyzed to determine the sequence of phase formation during solidification. In both cases, the solidification model proposed was validated.

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Section: A Boron Modified Supermartensitic Stainless Steelmentioning

confidence: 99%

Solidification Sequence of Spray-Formed Steels

Zepon

Ellendt

Uhlenwinkel

et al. 2015

Metall Mater Trans A

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“…Lavernia and Wu have reviewed this process route for the manufacture of a variety of products in detail [5]. Research interest in the spray atomization and deposition of liquid metals, and the mechanical working of spray formed preforms continues to remain strong [6][7][8][9][10][11][12][13][14].…”

Section: Introductionmentioning

confidence: 99%

Rolling behaviour of steel backed spray deposited Al–Sn strip

Tripathy

Dube

Koria

2007

Journal of Materials Processing Technology

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“…The hardness of the spray formed material increases slightly as the distance to the substrate decreases. This makes sense, considering that the cooling rate within the billet increases with decreasing distance to the substrate .…”

Section: Resultsmentioning

confidence: 99%

Microstructure and wear resistance of spray formed and conventionally cast high‐chromium white iron

Lotta

Hannula

2014

Materialwissenschaft Werkst

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A billet of hypoeutectic high‐chromium white iron (19% Cr, 2.5% C) was spray formed using Gas‐to‐Metal Ratios (GMR) of 0.9, 1.0, and 1.1. Microstructural studies and dry sand rubber wheel abrasion tests were carried out, on the one hand, to compare between the spray formed and conventionally cast material and, on the other hand, to investigate the relationship between gas‐to‐metal‐ratio, eutectic carbide morphology and abrasion resistance. The spray formed material was characterized by a considerably finer carbide morphology (max. ˜30 μm) than the conventionally cast material (max. 100–200 μm). The coarser carbide morphology is believed to be responsible for the superior abrasion resistance of the conventionally cast material. Although the carbide morphology of the spray formed material was only moderately influenced by the changes in the gas‐to‐metal‐ratio, there was a clear improvement in the abrasion resistance with decreasing gas‐to‐metal‐ratio. The improvement correlated with a decrease in the fraction of very fine (<1.5 μm) carbides, rather than with an increase in the mean carbide size.

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Spray forming of homogeneous 100Cr6 bearing steel billets

Cited by 21 publications

References 10 publications

Solidification Sequence of Spray-Formed Steels

Solidification Sequence of Spray-Formed Steels

Rolling behaviour of steel backed spray deposited Al–Sn strip

Microstructure and wear resistance of spray formed and conventionally cast high‐chromium white iron

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